public static void UpdateIisApplications( ExistingInstalledInstallationLogic newLogic, ExistingInstalledInstallationLogic oldLogic ) {
var appGetter =
new Func<ExistingInstalledInstallationLogic, IEnumerable<WebApplication>>(
logic =>
logic?.existingInstallationLogic.RuntimeConfiguration.WebApplications.Where( i => i.IisApplication != null ).ToImmutableArray() ??
Enumerable.Empty<WebApplication>() );
var newApps = appGetter( newLogic );
var oldApps = appGetter( oldLogic );
if( newApps.Any() )
IsuStatics.UpdateIisAppPool( newLogic.existingInstallationLogic.IisAppPoolName );
var newSiteNames = new HashSet<string>();
var newVirtualDirectoryNames = new HashSet<string>();
foreach( var app in newApps ) {
var site = app.IisApplication as Site;
if( site != null ) {
IsuStatics.UpdateIisSite( getIisSiteName( newLogic, app ), newLogic.existingInstallationLogic.IisAppPoolName, app.Path, site.HostNames );
newSiteNames.Add( getIisSiteName( newLogic, app ) );
continue;
}
var virtualDirectory = app.IisApplication as VirtualDirectory;
if( virtualDirectory != null ) {
IsuStatics.UpdateIisVirtualDirectory( virtualDirectory.Site, virtualDirectory.Name, newLogic.existingInstallationLogic.IisAppPoolName, app.Path );
newVirtualDirectoryNames.Add( virtualDirectory.Name );
continue;
}
throw new ApplicationException( "unrecognized IIS application type" );
}
foreach( var app in oldApps ) {
var site = app.IisApplication as Site;
if( site != null ) {
if( !newSiteNames.Contains( getIisSiteName( oldLogic, app ) ) )
IsuStatics.DeleteIisSite( getIisSiteName( oldLogic, app ) );
continue;
}
var virtualDirectory = app.IisApplication as VirtualDirectory;
if( virtualDirectory != null ) {
if( !newVirtualDirectoryNames.Contains( virtualDirectory.Name ) )
IsuStatics.DeleteIisVirtualDirectory( virtualDirectory.Site, virtualDirectory.Name );
continue;
}
throw new ApplicationException( "unrecognized IIS application type" );
}
if( oldApps.Any() && ( !newApps.Any() || newLogic.existingInstallationLogic.IisAppPoolName != oldLogic.existingInstallationLogic.IisAppPoolName ) )
IsuStatics.DeleteIisAppPool( oldLogic.existingInstallationLogic.IisAppPoolName );
}
private static string getIisSiteName( ExistingInstalledInstallationLogic logic, WebApplication app ) {
return "{0} - {1}".FormatWith( logic.existingInstallationLogic.RuntimeConfiguration.FullShortName, app.Name );
}